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(共13张PPT)
Unit 6
When was it invented
Section B 1a-1e
1.她无疑是那家医院最优秀的护士。
2.据说4在中国是个不吉利的数字。
3.在去图书馆的路上我碰巧遇到Amy。
4.我的生日派对今晚八点举行。
My birthday party will take place at 8:00 this evenning.
5.汤姆依然站在门外。
Tom remained standing outside the door.
Revision
Without doubt, she is the best nurse in the hospital.
It is said that four is an unlucky number in China.
I happened to see Amy on my way to the library.
potato chips
biscuits/cookies
crispy
How do the dishes taste
crispy
sweet
(sugar)
salty
(salt)
sweet & sour
hot and spicy
/'spaisi/
/'sa (r)/
(vinegar)
chilli
bitter（苦的）
coffee
The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word.
1a
sweet crispy salty sour
________ __________ ______ ________
crispy
salty
sour
sweet
salty
Write the name of a different food after each word.
1b
sweet crispy salty sour
apple;
orange;
cake;
honey;
candy;
biscuit
......
French fries;
lettuce;
popcorn;
potato chips;
......
pizza;
potato chips;
salt;
salty fish
pickle腌菜
......
grape;
vinegar醋;
orange;
lemon;
pickle腌菜;
strawberry
......
Pre-listening
What are they doing
They are talking about potato chips.
Do you know how potato chips were invented
1853
thin
angry
were invented
1853
thin
crispy
really salty
形容词/副词+enough
make sb. +形容词
最后
Boy 1: Hey, did you know that potato chips were invented by mistake
Boy 2: Really What do you mean
Boy 1: Well, here on the bag it says that they were invented by a cook called George Crum.
Boy 2: When was that
Boy 1: Oh, it was back in 1853.
Boy 2: So, why was it an accident
Boy 1: Well, one day, a customer came into the restaurant where George worked. He ordered a plate of fried potatoes. When the potatoes came, he said they were cut too thick and sent them back to the kitchen.
Boy 2: So what happened
Boy 1: Well, George was angry, so he cut the potatoes really, really thin, and he cooked them for a long time until they were crispy. And he put lots of salt on them so they were really salty. He thought the customer would hate them.
Boy 2: And
Boy 1: And the customer loved them and asked for more. He told the other customers about them, and soon everyone was ordering thinly cut, crispy, salty potato chips.
Boy 2: And we’re still eating them today. What a cool story!
It is often difficult to decide on the inventor of certain inventions. This is because sometimes a few people may ______ things which are nearly the same. It’s hard to tell who came up with the idea first. Some inventions can also lead to other inventions _______________. So some people ______ whether the inventor came up with the idea himself or herself. They think that the inventor used someone else’s idea to create his or her invention. That is why books or ________ usually ________ more than one inventor when giving information about inventions.
invent, doubt, mention, website, all of sudden
Complete the passage with the correct forms of the words in the box.
invent
Self-check
all of a sudden
doubt
websites
mention
Listen and circle T for true or F or false.
1c
1. Potato chips were invented by mistake.
2. They were invented in 1863.
3. The customer thought the potatoes were not thin enough.
4. The customer said they were not salty enough.
5. George wanted to make the customer happy.
6. The custom was happy in the end.
T F
T F
T F
T F
T F
T F
n. 顾客
无意中
最后，终于
Listen again Complete the sentences.
1d
The History of Potato Chips
Do you know how potato chips were invented Potato chips
_____________ by a cook called George Crum. They were
invented in ________. George Crum cut the potatoes really,
really______ and then cooked them for a long time until they
were _________. Finally he put lots of salt on them so they
were ___________.
were invented
1853
thin
crispy
really saltyUnit 6 When was it invented
单元总览
类别 课程标准要求掌握的项目
单元话题 In this unit, students learn to talk about the history of inventions
重点单词 1.project n. 项目，工程；2. pleasure n. 高兴，愉快； 3. daily adj. 日常的，每日的； 4. mention v. 提到，说到；5.nearly adv.几乎，差不多； 6.boil v. 煮沸，烧开；7.remain v. 保持不变；剩余；8.national adj.国家的，民族的；9. low adj.低的，矮的； 10.translate v. 翻译； 11.lock v.锁上；n. 锁；12.sudden adj. 突然的13. crispy adj. 脆的；酥脆的；14. salty adj. 咸的； 15.sour adj. 酸的，有酸味的；16.customer n. 顾客。17. Canadian 加拿大的， 18. divide v. 分开，分散；19. hero n 英雄，男主角； 20. professional adj. 职业的，专业的；
重点词组 1. shoes with special heels 特殊后跟的鞋子 2. hot ice cream scoop热的冰其淋勺子 3. run on electricity 电动的4. be used for 被用作5. the subject for my school project学校项目的课题 6. our daily lives 我们的日常生活 7. have a point有点道理 8. by accident偶然，意外地 9. over the open fire在火堆上 10. fall into the water 落入水中 11. take place 发生 12. without doubt毫无疑问 13. at a low price 以一个很低的价格 14. translate the book into different language 把书翻译成不同种的语言15. all of sudden 突然 16. by mistake 错误地 17. a much-loved and active sport一个深受喜爱并且积极的运动18. divide…into 把…分开 19. stop sb from doing sth 阻止某人做某事 20. look up to钦佩，仰慕 21. the professional basketball groups职业篮球机构 22. use someone else’s idea借用其他人的想法
重点句式 1. I think the TV was invented before the car. 我认为电视是在轿车之前发明的。2. ---When was the telephone invented --- 电话是什么时候发明的？ --I think it was invented in 1876. ---我认为电话是在1876年被发明的。3. ---What are they used for ---他们可用来做什么？ ---They are used for changing the style of the shoes ---他们可用来改变鞋子的样式。4. ---When was the zipper invented ---拉链是什么时候发明的？ ----It was invented in 1893 .--它是在1893年被发明的。5. ---Who was it invented by ---它是由谁发明的？---It was invented by Whitcomb Judson. ---它是被惠特科姆.贾德森发明的。6. ---When was tea brought to Korea ---茶是什么时候被带到韩国的？ ---It was brought to Korea during the 6th and 7th centuries.---它是在六至七世纪被带到韩国的。7. ---What is the hot ice-cream scoop used for -这个热的冰其淋勺子是用来做什么的？ ---It’s used for serving really cold ice-cream ---它是用来提供真正冷的冰其淋。
单元语法 Passive voice (past tense)
课时分解
第四课时 Section B（1a ~ 1e）
类别 课时要点
重点单词 1. crispy adj. 脆的；酥脆的；2. salty adj. 咸的；3.sour adj. 酸的，有酸味的；4.customer n. 顾客。
重点句式 1. ---Did you know potato chips were invented by mistake ---I didn’t know that. Who invented them ---Potato chips were invented by a cook called George Grum. ---我不知道，是谁发明的 ---土豆条是由一个叫George Grum的厨师发明的。2. The customer thought the potatoes were not thin enough.顾客认为土豆不够薄。3. Finally he put lots of salt on them so they were salty enough. 最后他在他们上面撒了许多盐以使他们足够咸。
I. 知识目标
II. 课堂环节
§自主学习方案
【新词自查】
根据句意及首字母提示完成单词。
1. I don’t like lemons because they are too sour.
2. Lucy and Lily are twins. People often mistake them for each other.
3. For a restaurant, customers are the most important.
4. The fish was too salty because my mom put too much salt on it.
5. We often put the food into the fridge to keep it fresh in summer.
§课堂导学方案
回顾：在前面的课程我们已经学习并了解了几种有用的发明，它们在很大程度上改变了我们的生活，使我们的生活更丰富多彩。下面提几个简单的问题来回顾上节课的内容：
When was the telephone invented
______________________________________________
Can you imagine the life without telephones
______________________________________________
What do you think is the most helpful invention
______________________________________________
4. What would you most like to invent if you could
______________________________________________
环节说明：课前的师生问答互动不仅让学生回顾了上节课的内容，巩固了被动语态，同时，让他们知道创新和发明可以改善人类的生活，要勇于开拓、创新。
Step 2完成教材1a-1e的任务
1. 要求学生翻开课本P45，迅速阅读1a部分的内容。并按要求完成课本上相应的任务in 1a. 然后要求4名同学给出自己的答案，并进行个读，齐读。（2分钟）
要求学生完成1b部分的任务：Write the name of a different food after each word .然后邀请几名同学给出自己的答案。并把收集的答案列举在黑板上。（4分钟）
参考案例
sweet bananas; crispy chips; salty noodles; sour grapes
3. 听第一遍录音，完成课本上1c部分的任务: Listen and circle T or F. (2分钟)
1．T 2．F 3．T 4．F 5．F 6．T
4. 听第二遍录音，完成课本上1d部分的任务：Listen and complete the sentences. (2分钟)
5. 听力内容巩固训练。要求学生根据所听到的内容完成下列对话。完成后要求若干学生给出自己的答案。以巩固对听力内容的了解。（3分钟）
Do you like potato chips Do you know how the po tato chips were invented Now, let's listen and fill in the blanks.Potato chips were invented by mistake. They were invented by a chef called George Crum. One day a customer thought the fried potatoes weren't thin enough and weren't salty enough. So George cut them really thin and cooked them for a long time until they were crispy. And he sprinkled a lot of salt on them so they were salty.
6. 听第三遍录音，并打开听力材料，全班逐句进行跟读。（2分钟）
7. 放下听力材料，要求学生利用1c和1d的听力内容；模仿1e方框所给的对话编造一个有关土豆条的发明的对话练习。然后邀请2-3对同学当堂分角色演示。看哪一对的表现最佳。（5分钟）
环节说明：将听、说、读、写的任务结合起来不仅锻炼了学生的语言综合运用能力，还巩固了学生对目标语言的学习、识记和运用; 薯条的发明的小故事有很强的趣味性，让学生体会到了英语学习的乐趣。
§当堂评价方案（详见当堂训练部分）
§备课资料包
a. 词汇包：
by mistake 错误地
by mistake 是介词短语，意为“错误地；无意地；不小心地”，指由于错误的判断而千百万的失误，常在句中作状语。
【备课例句】
I took your bag instead of mine by mistake. 我错拿了你的手提包，还以为是我的呢。
Susan forgot her key and locked herself out by mistake. 苏珊忘了带钥匙，误把自己关在门外了。
【横向辐射】mistake...for…
mistake...for…把……错认为, 错把……当作She mistook him for the professor.她把他错当作教授了。
【课堂变式】
—I’m sorry I’ve taken your dictionary ____ because they have the same colour. —It doesn’t matter. A. at once B. by mistake C. in general D. as well 【解析】由because they have the same colour可知是错拿了词典，正确答案是B。
b. 句式包：
1.George wanted to make the customer happy. 乔治想让顾客开心。
句中的make意为“使得”，happy是形容词，作宾语you的补足语，对宾语起补充说明作用，常用的结构为“make＋名词/代词＋形容词”。
【备课例句】
The bad news makes her sad. 那个坏消息使得她伤心不已。
A boy broke the window. It made the headmaster angry. 一个孩子打碎了玻璃。这使得校长很生气。
【温馨提示】
当宾语是不定式短语或从句时，多用it作形式宾语。
I made it a condition that everybody must be on time. 我提出一个条件，人人都要准时。
The heavy rain made it impossible for us to go out. 大雨使得我们无法出去。
【横向辐射】make的其他相关句式
1.“make＋宾语＋n”意为‘使/让某人 / 某物(成为)……”。【例句】We made him captain of our football team. 我们推选他作我们足球队队长。We made him our monitor. 我们选他当班长。2.“make＋宾语＋do sth”意为“使某人做某事”。 在被动语态中，此类结构中省略的动词不定式 to 要还原。【例句】Our teacher makes us feel more confident. 老师使得我们感到更自信了。The boy was made to work twelve hours a day. 这个男孩被迫每天干十二个小时的活。
【课堂变式】
What do you think her A. make; sad B. makes; sadlyC. made; sad D. made; sadly【解析】what 作主语时，谓语动词要用第三要称单数形式，可排除A。再根据“make + sb. / sth. + adj.”确定选C。sadly是副词形式。
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